It's a James Hetfield joke, champ. I recognized the Metallica quote and made a joke regarding Hetfield's frequently throaty vocals and "yeeearrgghhh!!" inflections. I knew exactly what he was referencing and made a joke about it that evidently went straight over your head.
If this is the best of possible worlds, what then are the others?
― Voltaire, Candide
Fluff has a political dimension for when we hear an opinion we don't like but can't answer, we distract with fluff.
Fluff is the perfect political ploy because fluff gives deniability - we can deny we are making a political strike by saying it's only fluff, only a joke.
And fluff has the political advantage of sucking up space and sucking up attention. Fluff denies oxygen to your political opponent. Your opponent can't breath and can't answer you and is slowly politically asphyxiated.
But what is most interesting is that fluff is a spectator sport, just like bullying. In fact fluff is a more sophisticated form of bullying.